Yes. You can by using Skype.
Chat with our AI personalities
no
If there isn't a download on the store with call of duty, then no. You can play call of duty 3 onwards on the PS3.
No cheats. Most people use mods and what not by downloading the hack off PC, putting on flash drive, pluging into the PS3, load into it, done.
PS3 with HD
not at once.